Hollow brick and tile molding machine



- W. L.DRA KE i Hollow Brick and Tile Molding Machine. NO. 239,230. 4

Patehted March '22, 1881'.

-Wiinesses Inventr N, PETERS, PHOTO-LITHOGRAFHER, WASHINGTON I10.

. UNITED STATES PATENT OFFICE.

IVEAR L. DRAKE, OF CHICAGO, ILLINOIS.

HOLLOW BRICK AND TILE MOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 239,230, dated March 22, 1881.

Application filed September 4, 1879.

To all whom "it may concern:

Be it known that I, WEAR L. DRAKE, of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Hollow Brick and Tile Molding Machines, of which the following is a full, clear, concise, and exact-description, reference being had to the accompanying drawings, forming a part thereof, and in which- Figure 1 represents a longitudinal elevation with the front cut away; Fig. 2, an end elevation, showing the roller-rack M; Fig. 3, the horizontal die-plate i and adjustable core-pin j, pivoted as shown at r, to its support-frame K, a section thereof being shown in connection with attachment-box L, Fig. 1 Figs. 4 and 5, different styles of die-plates; Figs. 6 and 7, respectively, sectional and superficial views of u an adjustable core-pin consisting of any numher of parts, as p p p,- Fig. 8, an end elevation, in which is shown another style of core-pin, J J, the separate parts being connected by wires 01: a. Dividing-wire v is also shown.

B B are the covers of clay-boxes O G, which are symmetrical.

The shaft G is journaled as shown at K K, and is provided with driving-pulleys a b c. a and 0 run free on the axle G, one carrying a straight and the other a crossed belt, which are applied alternately to the rigid pulley b.

F is the pinion, geared with the wheel E, which is provided with a thread and revolves or turns upon the piston or screw D, driving it longitudinally back and forth with the plungers W W, which are attached to either end of D.

Heretofore the piston D, or plunger shaft, as it is sometimes called, has been driven back and forth by means of bevel-gear wheels, requiring to accomplish such motion five bevelwheels and two shafts with spur and pinion wheels, which combination of mechanism I disclaim.

ff are knee-joints. gis the connecting-rod. e e are levers attached thereto, as shown. When the levers are thrown up, as shown, the pinion is raised, and thereby thrown out of gear with wheel E, and the machine stops. The pinion is thrown into gear by moving the levers either to the right or left. In large machines this work is done mechanically.

Clay properly tempered is thrown alternately into the boxes 0 G, and, by means of the'plungers W W, forced out through the die-plates h h, and thereby formed into brick, tile, or moldings, which are received upon a rollerrack, M, placed at either end of the machine, and by means of a cutter, N, provided with wires, as shown, divided into pieces of such length as required. Prior to my invention the core-pin and dieplate were cast in a single piece. I find. that the two may be made separate, as shown in Fig. 3, and when so constructed the core-pin becomes adjustable, and the size and shape of the hollow or opening in the brick, tile, or moldings may be varied simply by changing the core-pin. Whatever may be the style of core-pin, whether consisting of one or more parts, its holder, which may be about one inch wide and twenty-two (22) inches long in a large machine, is beveled on the inner side and left flat or with a plane upper surface, so that the clay is made to lap-weld after it passes the holder and before it passes the core-pin, and thus the brick or tile are prevented from cracking.

The attach went-box L may be used in molding large tile, which are run down througha die-plate placed horizontally, as shown; Tile may, however, be handled with much greater facility when run out horizontally upon rollerracks. The difficulty heretofore experienced in doing this, when the tile are large, is that when fresh molded they are liable to collapse or fall in when placed upon their sides; but by the use of my core-pin J J, Fig. 8, a portion of the clay is left within the opening and serves to support the sides of the tile until they are partially dried. This portion is then left loose and is readily removed. The wires 00 a; divide or separate this support or core as it passes through the die from the sides of the tile, yet leaving it in place, so that it serves to support the tile until they are sufficiently hardened to supporttheir own weight, as before described.

The parts J J may be increased in number and connected by wires, as w m, substantially as shown, and thereby two or moresupports may be left within the openin During this process of molding large tile the dividingwire 1; is not used. It is designed for divid- 1. The piston D, provided with a thread ing alarge tile and making thereof two smaller and plungers W W, in combination with the ones, when placed as shown in Fig. 8, and in pulleys a, b, and a, shaft G, and pinion F, this latter case the wires .1 x are removed and whereby power is applied to the wheel E, which 20 5 the tile comes from the machine with two openturns upon the thread, driving the piston D ings, the portion between the parts J J of longitudinallybaok and forth, substantially as the core-pin being; left solid; but on coming and for the purpose specified. I against the wire 2; the tile is divided into two 2. The knee-jointsff, attached to the frame parts, either one of which is in itself a com- K K and side A, in combination with the con- 25 1o plete tile. necting-rod g and levers e 0, arranged substan- By increasing the number of par-ts J J of tially as shown and described. the core-pin and using the necessary number of dividing-wires v the number of tile or WEAR DRAKE moldings that may be run out together may Witnesses: 1 be indefinitely increased. WALLACE L. DE WOLF,

I claim- GEORGE P. BARTON. 

